update CI to build the presentation

.gitlab-ci.yml

@@ -10,6 +10,7 @@ build:
     artifacts:
         paths:
             - Jerabek-thesis-2019-canfd.pdf
+            - prezentace/prezentace.pdf
 # Disable. No way to prevent web crawlers to index the WIP version.
 .pages:
     stage: deploy

README.md

@@ -4,6 +4,8 @@ a.k.a. my Master's Thesis.
 
 The PDF for the latest version (on the master branch): [Jerabek-thesis-2019-canfd.pdf](https://gitlab.fel.cvut.cz/jerabma7/canfd-thesis/-/jobs/artifacts/master/file/Jerabek-thesis-2019-canfd.pdf?job=build)
 
+Defense presentation (in Czech): [prezentace.pdf](https://gitlab.fel.cvut.cz/jerabma7/canfd-thesis/-/jobs/artifacts/master/file/prezentace/prezentace.pdf?job=build)
+
 For older or other versions, you may download the PDF on the [pipelines page](https://gitlab.fel.cvut.cz/jerabma7/canfd-thesis/pipelines).